dont worry ur dominant follicle is good.. u can catch the egg in48 hr of hcg shot.. please be optimistic.. ur follicle is good.. u ll not have triplets chances its good..
LITERATURE ON FOLLICLE AND HCG...
In a spontaneous cycle, a group of follicles starts to develop together in response to the rise in FSH and luteinizing hormone (LH). By day 6 to 8, a dominant follicle emerges that continues to grow; this becomes evident by both ultrasound measurements and a rise in estradiol level. When estradiol is produced in excess of 150 pg/mL and this level is maintained for 48 to 50 hours, an LH surge is induced and ovulation occurs. This usually happens when the lead follicle reaches 22 to 24 mm in diameter.
Ovulation induction is often used in assisted reproduction. Various agents are available to induce the simultaneous growth of several follicles. Depending on the type of treatment, the number of growing follicles is anywhere between 2 and > 10. In a cycle with timed intercourse or intrauterine insemination (IUI), 2 to 4 follicles are desired. CC and gonadotropins may be used to achieve this goal. CC is initiated on day 3 or 5 of the menstrual cycle and is administered for 5 days at a daily dose of 50 to 150 mg. Gonadotropins (eg, HMG) are administered either alone or in combination with CC. Gonadotropins may be administered daily or every other day. Several factors (eg, age, body mass index, previous response, order of treatment cycle) are considered when the type and dose of medication is chosen. A general "optimal regimen" that works for everybody does not exist. Gonadotropin use is typically associated with higher pregnancy rate but also with hyperstimulation and a higher incidence of multiple gestations. The increased cost also needs to be considered. CC in combination with gonadotropins (administered as a single ampoule every other day) is a good choice for those who do not respond well to CC alone. When gonadotropins are used, they are started on day 3 of the cycle. Usually 1 ampoule per day will elicit a sufficient response.
n everyday practice, it is advisable to follow response to stimulation at least in the first cycle with CC and in all cycles following the administration of injectable gonadotropins. One needs to be sure that folliculogenesis is induced and that not too many developing follicles are present. If the response is adequate and one plans to repeat such cycles (without further intervention such as IUI), urinary LH kits may help the patient with timing ovulation and intercourse. If stimulation is combined with IUI or one wants to offer even better timing, HCG should be administered. HCG should be administered once the largest follicle reaches a diameter of 18 to 20 mm when CC is used, or about 18 mm with injectable gonadotropins. For best results, timed intercourse should be planned within 48 hours, or an IUI should be planned within 38 to 40 hours of the injection.